view tools/load_tracker.py @ 6433:c1d3fbcdbfbd

issue2551142 - Import of retired node ... unique constraint failure. Title: Import of retired node with username after active node fails with unique constraint failure. More fixes needed for mysql and postgresql. mysql: add unique constraint for (keyvalue, __retired__) when creating class in the database. On schema change if class is changed, remove the unique constraint too. upgrade version of rdbms database from 5 to 6 to add constraint to all version 5 databases that were created as version 5 and didn't get the unique constraint. Make no changes on version 5 databases upgraded from version 4, the upgrade process to 5 added the constraint. Make no changes to other databases (sqlite, postgres) during upgrade from version 5 to 6. postgres: Handle the exception raised on unique constraint violation. The exception invalidates the database connection so it can't be used to recover from the exception. Added two new database methods: checkpoint_data - performs a db.commit under postgres does nothing on other backends restore_connection_on_error - does a db.rollback on postgres, does nothing on other backends with the rollback() done on the connection I can use the database connection to fixup the import that failed on the unique constraint. This makes postgres slower but without the commit after every imported object, the rollback will delete all the entries done up to this point. Trying to figure out how to make the caller do_import batch and recover from this failure is beyond me. Also dismissed having to process the export csv file before importing. Pushing that onto a user just seems wrong. Also since import/export isn't frequently done the lack of surprise on having a failing import and reduced load/frustration for the user seems worth it. Also the import can be run in verbose mode where it prints out a row as it is processed, so it may take a while, ut the user can get feedback. db_test-base.py: add test for upgrade from 5 to 6.
author John Rouillard <rouilj@ieee.org>
date Thu, 10 Jun 2021 12:52:05 -0400
parents 2120f77554d5
children e1dfd21f2252
line wrap: on
line source

#! /usr/bin/env python
'''
Usage: %s <tracker home> <N>

Load up the indicated tracker with N issues and N/100 users.
'''

from __future__ import print_function
import sys, os, random
from roundup import instance

# open the instance
if len(sys.argv) < 2:
    print("Error: Not enough arguments")
    print(__doc__.strip()%(sys.argv[0]))
    sys.exit(1)
tracker_home = sys.argv[1]
N = int(sys.argv[2])

# open the tracker
tracker = instance.open(tracker_home)
db = tracker.open('admin')
db.tx_Source = "cli"

priorities = db.priority.list()
statuses = db.status.list()
resolved_id = db.status.lookup('resolved')
statuses.remove(resolved_id)

names = ['alpha', 'beta', 'gamma', 'delta', 'epsilon', 'zeta', 'eta', 
'theta', 'iota', 'kappa', 'lambda', 'mu', 'nu', 'xi', 'omicron', 'pi',
'rho']

titles = '''Lorem ipsum dolor sit amet, consectetuer adipiscing elit.
Duis nibh purus, bibendum sed, condimentum ut, bibendum ut, risus.
Fusce pede enim, nonummy sit amet, dapibus a, blandit eget, metus.
Nulla risus.
Vivamus tincidunt.
Donec consequat convallis quam.
Sed convallis vehicula felis.
Aliquam laoreet, dui quis pharetra vehicula, magna justo.
Euismod felis, eu adipiscing eros metus id tortor.
Suspendisse et turpis.
Aenean non felis.
Nam egestas eros.
Integer tellus quam, mattis ac, vestibulum sed, egestas quis, mauris.
Nulla tincidunt diam sit amet dui.
Nam odio mauris, dignissim vitae, eleifend eu, consectetuer id, risus.
Suspendisse potenti.
Donec tincidunt.
Vestibulum gravida.
Fusce luctus, neque id mattis fringilla, purus pede sodales pede.
Quis ultricies urna odio sed orci.'''.splitlines()

try:
    try:
        db.user.lookup('alpha0')
    except:
        # add some users
        M = N//100
        for i in range(M):
            print('\ruser', i, '       ', end=' ')
            sys.stdout.flush()
            if i//17 == 0:
                db.user.create(username=names[i%17])
            else:
                db.user.create(username=names[i%17]+str(i//17))

    # assignable user list
    users = db.user.list()
    users.remove(db.user.lookup('anonymous'))
    print()

    # now create the issues
    for i in range(N):
        print('\rissue', i, '       ', end=' ')
        sys.stdout.flush()
        # in practise, about 90% of issues are resolved
        if random.random() > .9:
            status = random.choice(statuses)
        else:
            status = resolved_id
        db.issue.create(
            title=random.choice(titles),
            priority=random.choice(priorities),
            status=status,
            assignedto=random.choice(users))
        if not i%1000:
            db.commit()
    print()

    db.commit()
finally:
    db.close()

# vim: set filetype=python ts=4 sw=4 et si

Roundup Issue Tracker: http://roundup-tracker.org/